VSUN completes 4GW wafer plant in Vietnam

April 23, 2024
Facebook
Twitter
LinkedIn
Reddit
Email
VSUN wafer plant in Vietnam has started commercial operation.
VSUn expects to reach full production of the wafer plant in Vietnam by the end of April. Image: VSUN.

Tokyo-headquartered solar manufacturer VSUN has commenced commercial production of its 4GW silicon wafer plant in Vietnam.

Construction of the plant started last November, with the first n-type 182.2×182.2mm n-type silicon wafer starting production.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Full production of the 4GW annual nameplate capacity is expected to be reached at the end of April, as the company aims to reach a vertically integrated solar supply chain. The company’s solar cell subsidiary, TOYO Solar recently secured a long-term polysilicon supply agreement with South Korean-owned polysilicon producer OCI.

The start of operational capacity for the wafer plant is part of the company’s Phase I plan, with Phase II currently underway and aims to expand the cell capacity.

Furthermore, in a conversation with PV Tech, Dr. Aihua Wang, chief technology officer at VSUN, spoke about the technological transition from p-type to n-type cells and the company’s plans in the US, with a first phase of 2GW of annual nameplate capacity for solar cells and modules which is expected to start operation during the fourth quarter of 2024 and in 2025, respectively.

Read Next

January 19, 2026
Chinese wafer producer TCL Zhonghuan is planning to take a controlling stake in cell and module manufacturer DAS Solar to strengthen its vertical integration.
January 14, 2026
Australian start-up Stellar PV has released early details of the solar ingot and wafer facility it plans to build in the state of Queensland.
January 13, 2026
The British International Investment (BII), has committed US$20 million to Vietnamese lender HDBank's inaugural green bond programme.
December 19, 2025
Wang Bohua, honorary chairman of the China PV Industry Association (CPIA), said that the polysilicon production in China experienced its first year-on-year decline since 2013, while wafer production registered its first year-on-year decline since 2009.
December 18, 2025
The latest edition of our print journal, PV Tech Power, is out today and available to download, where we deep dive into PV quality assurance.
December 15, 2025
Solar manufacturer SEG Solar has started construction on a 3GW ingot and wafer manufacturing plant in Indonesia.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA